Magnon-Photon interactions for Quantum Key Distribution
Pradeep Kumar,Anil Prabhakar +1 more
- Vol. 303, Iss: 1, pp 012040
TLDR
In this article, the authors proposed an implementation of QKD protocol using magnon-photon interactions in dielectric waveguides. But the main advantage of their scheme is the higher quantum bit error rate (QBER) (37.5%) compared to polarization-coded scheme (25%) for simple intercept/resend attack.Abstract:
We propose an implementation of quantum key distribution (QKD) protocol using magnon-photon interactions in dielectric waveguides. Starting from the Hamiltonian of spin wave-optical interactions in a symmetric dielectric waveguide, we derive the single-photon transformations that allow us to define two non-orthogonal basis sets, which are isomorphic to polarization basis of single-photon. Implementation of the BB84 and B92 protocols is then straightforward. The principal advantage of our scheme is the higher quantum bit error rate (QBER) (37.5%) compared to polarization-coded scheme (25%) for simple intercept/resend attack. This considerably relaxes the specifications of optical components. Finally, we consider the effect of low conversion efficiency on QBER.read more
Citations
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Proceedings ArticleDOI
Quantum key distribution using transverse spin wave-optical interactions
Pradeep Kumar,Anil Prabhakar +1 more
TL;DR: In this article, a frequency-coded scheme to implement the BB84 quantum key distribution protocol using spin-wave (SW)-optical interactions was proposed, which offers a higher key rate, due to a modulation frequency as high as 25 GHz, and relaxes the specifications on the optical filter at the receiver.
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